What a hero!
... // An event that I want to remove later } setTimeout( function() { document.body.removeEventListener('scroll', HANDLER ,false); // What HANDLER should I specify to remove the anonymous handler above? I was struggling with this for awhile! The removeEventListener() method removes an event handler that has been attached with the addEventListener() method.. and http://alexfedoseev.com/post/65/react-event-handlers-and-context-binding). https://facebook.github.io/react/blog/2015/01/27/react-v0.13.0-beta-1.html#es7-property-initializers, https://medium.freecodecamp.org/react-binding-patterns-5-approaches-for-handling-this-92c651b5af56. But when first component is unmounted its hashChange event is still called and vice-versa. Also what error you get that you think it’s not working?
Thank you, actually this did not remove the listener for me on an event for the document. someDom.addEventListener('mousemove',function(ev) {self.onInputMove(ev)},false); someDom. This should be included in the react docs.
Can you show an example? Did you get an error message.
(more http://stackoverflow.com/questions/11565471/removing-event-listener-which-was-added-with-bind. You signed in with another tab or window. addEventListener() and removeEventListener() are not present in older browsers. I don't know what I am doing wrong but here is an example of what I am doing and it doesn't seem to work. I created my component as modal.
Thank you! Instantly share code, notes, and snippets. Polyfill to support older browsers. I'm glad you shared this.
Cheers! this.onResize = ::this.onResize; You can just place it in constructor (quite common pattern): @DimitryDushkin yes, that's a subset of solution #2. ouch, just got bit by this. Thanks man! An even more fancy es6/7 syntax for binding this looks like ::this.onResize and be used globally throughout your component. I implemented a ‘removeEventListener’ in ‘destroyed’, and then ‘beforeDestroy’ but the multiple events persisted. Ty for any help. You could also use this syntax in the constructor if you like declaring the bind. And when modal is closed event handler is still on. You can get this for free with arrow functions (https://medium.freecodecamp.org/react-binding-patterns-5-approaches-for-handling-this-92c651b5af56). This is my addEventListener wich is working fine in mounted, but i cant get removeEventListener working in destroyd.
The .off() method removes event handlers that were attached with .on().See the discussion of delegated and directly bound events on that page for more information.
You saved me! but i cant get removeEventListener working in destroyd. and there for confirmation enter work fine, but when I wont to remove event listener in destroyed I can’t. I’m guilty, I was passing this.foo(event) to addEventlisener.
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